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- Subject: Re: Best Practices for Lua -> "Lua+"?
- From: Mark Hamburg <mhamburg@...>
- Date: Mon, 24 Mar 2008 16:00:59 -0700
on 3/24/08 3:23 PM, Roberto Ierusalimschy at firstname.lastname@example.org wrote:
>> Yes, LNUM patch is at the moment The way to optimize Lua integer
>> I have yet to hear what Lua authors think of the latest version, but it
>> would seem to me to be beneficial for the whole language to include the
>> patch (or: parts of it).
> The patch is quite useful, but I am still not comfortable with the idea
> of two kinds of numbers. The problem is that, although the difference is
> mostly invisible, it is not completely invisible. For instance, consider
> the following fragment (ran under (double int64)):
> y = 1
> for i=1,60 do y=y*2 end
> x = (y*1000)/1000
> print(x == y, x+1 == y+1) --> true false
> I know this is a rather artificial example, but I find the result somewhat
I think the only way this becomes viable is if integers are just a more
"efficient" storage format for floating point values.